/* Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: rgba(250, 250, 250, 0.95);
    backdrop-filter: blur(10px);
    transition: var(--transition-normal);
    border-bottom: 1px solid transparent;
}

.header.scrolled {
    background: rgba(250, 250, 250, 0.98);
    border-bottom: 1px solid var(--border-subtle);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-sm) var(--space-md);
    gap: var(--space-md);
}

.logo-link {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.nav-center {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-links-list {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-right {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.nav-link {
    font-family: var(--font-display);
    font-weight: 600;
    text-transform: uppercase;
    font-size: var(--text-sm);
    letter-spacing: 0.05em;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent-primary);
    transition: var(--transition-fast);
}

.nav-link:hover::after {
    width: 100%;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    font-family: var(--font-display);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: var(--text-sm);
    transition: var(--transition-normal);
    cursor: pointer;
}

.btn-primary {
    background: var(--accent-primary);
    color: var(--text-inverse);
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    border: 1px solid var(--text-primary);
    color: var(--text-primary);
}

.btn-outline:hover {
    background: var(--text-primary);
    color: var(--text-inverse);
}

/* Footer */
.footer {
    background: var(--bg-tertiary);
    padding: var(--space-xl) 0 var(--space-lg);
    border-top: 1px solid var(--border-subtle);
}

.footer-logo {
    height: 40px;
    width: auto;
    margin-bottom: var(--space-md);
}

.footer-link {
    display: block;
    margin-bottom: var(--space-xs);
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.footer-link:hover {
    color: var(--accent-primary);
    transform: translateX(4px);
}

.graphics-cta {
    display: inline-block;
    margin-top: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--border-strong);
    font-family: var(--font-display);
    font-weight: 700;
    text-transform: uppercase;
    font-size: var(--text-xs);
    letter-spacing: 0.1em;
    transition: var(--transition-normal);
}

.graphics-cta:hover {
    background: var(--text-primary);
    color: var(--text-inverse);
    border-color: var(--text-primary);
}

/* Mobile Menu Toggle Button */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
    border-radius: 8px;
    transition: background 0.3s ease;
}

.mobile-menu-toggle:hover {
    background: rgba(0, 0, 0, 0.05);
}

.hamburger-line {
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile Menu Close Button */
.mobile-menu-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1002;
    border-radius: 8px;
    transition: background 0.3s ease;
}

.mobile-menu-close:hover {
    background: rgba(0, 0, 0, 0.05);
}

.mobile-menu-close span {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.mobile-menu-close span:first-child {
    transform: translate(-50%, -50%) rotate(45deg);
}

.mobile-menu-close span:last-child {
    transform: translate(-50%, -50%) rotate(-45deg);
}

.mobile-menu-close:hover span {
    background: var(--accent-primary);
}

/* Mobile Menu Overlay */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-100%);
    transition: all 0.3s ease;
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.mobile-menu-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%;
    gap: 0;
    padding: 80px 20px 20px;
    overflow-y: auto;
}

.mobile-menu-link {
    font-size: 1.2rem;
    font-weight: 400;
    color: var(--text-primary);
    text-decoration: none;
    padding: 16px 24px;
    letter-spacing: 0.3px;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
    width: 100%;
    max-width: 300px;
    text-align: center;
    border-radius: 12px;
    margin: 4px 0;
}

.mobile-menu-link:hover {
    background: rgba(0, 0, 0, 0.05);
    transform: translateY(0);
}

.mobile-menu.active .mobile-menu-link {
    opacity: 1;
    transform: translateY(0);
}

.mobile-menu.active .mobile-menu-link:nth-child(1) { transition-delay: 0.1s; }
.mobile-menu.active .mobile-menu-link:nth-child(2) { transition-delay: 0.15s; }
.mobile-menu.active .mobile-menu-link:nth-child(3) { transition-delay: 0.2s; }
.mobile-menu.active .mobile-menu-link:nth-child(4) { transition-delay: 0.25s; }
.mobile-menu.active .mobile-menu-link:nth-child(5) { transition-delay: 0.3s; }
.mobile-menu.active .mobile-menu-link:nth-child(6) { transition-delay: 0.35s; }
.mobile-menu.active .mobile-menu-link:nth-child(7) { transition-delay: 0.4s; }

.mobile-cta-btn {
    margin-top: 20px;
    padding: 16px 32px;
    font-size: 1.1rem;
    font-weight: 600;
    background: var(--accent-primary);
    color: var(--text-inverse);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
    width: 100%;
    max-width: 280px;
}

.mobile-menu.active .mobile-cta-btn {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.45s;
}

.mobile-cta-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
}

/* Mobile breakpoint - show hamburger, hide desktop nav */
@media (max-width: 900px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .nav-center,
    .nav-right {
        display: none !important;
    }
    
    .header {
        padding: var(--space-xs) var(--space-sm);
    }
}